![[Contents]](FIGURE/CONTENT.GIF)
OpenTP1 Version 7 TP1/Client User's Guide TP1/Client/W, TP1/Client/P
![[Index]](FIGURE/INDEX.GIF)
![[Back]](FIGURE/FRONT.GIF)
![[Next]](FIGURE/AFTER.GIF)
TP1/Client can execute synchronous response type RPCs or no-response type RPCs.
The CUP sends an inquiry message to an SPP and receives a response message. Subsequent CUP processing waits until the SPP returns the processing result.
The following figure shows the process flow of a synchronous response type RPC.
Figure 2-3 Process flow of a synchronous response type RPC
![[Figure]](FIGURE/ZU020300.GIF)
The CUP sends an inquiry message to an SPP but does not receive a response message. Subsequent CUP processing is executed without receiving the processing result from the SPP.
The following figure shows the process flow of a no-response type RPC.
Figure 2-4 Process flow of a no-response type RPC
![[Figure]](FIGURE/ZU020400.GIF)
All Rights Reserved. Copyright (C) 2006, 2009, Hitachi, Ltd.